Best Time to Dive Black River District
Across 4 Black River District dive sites with multi-year conditions history, December historically shows the most favorable days — 26% of sampled days in the good band.
Computed from our own conditions climatology — measured history, not brochure copy. Historical patterns, never a forecast or a guarantee.
Month by month
| Month | Historically favorable days | Water temp | Typical seas |
|---|---|---|---|
| Jan | 14% | 29°C | 2.1 m |
| Feb | 9% | 29°C | 2.4 m |
| Mar | 18% | 29°C | 2.3 m |
| Apr | 8% | 28°C | 2.3 m |
| May | 1% | 27°C | 2.8 m |
| Jun | 0% | 25°C | 2.8 m |
| Jul | 3% | 24°C | 2.7 m |
| Aug | 2% | 24°C | 2.8 m |
| Sep | 2% | 24°C | 2.5 m |
| Oct | 15% | 25°C | 2.3 m |
| Nov | 21% | 27°C | 2.2 m |
| Dec | 26% | 28°C | 2.0 m |
% = share of sampled days scoring in the favorable band, median across 4 sites with at least two years of history. Ringed = historical peak.
How does this compare worldwide? The Most Reliable Diving Months on Earth ranks 61 countries by the same measure.
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